Main Idea and New Vocabulary Key Concept: Coordinate Plane Example 1: Naming Points Using Ordered Pairs Example 2: Graph an Ordered Pair Example 3: Real-World Example Example 4: Real-World Example Lesson Menu

Graph points on a coordinate plane. quadrant x-axis y-axis origin ordered pair x-coordinate y-coordinate Main Idea/Vocabulary

Key Concept

Naming Points Using Ordered Pairs Write the ordered pair that corresponds to point R. Then state the quadrant in which the point is located. • Start at the origin. • Move left on the x-axis to find the x-coordinate of point R, which is –2. • Move up to find the y-coordinate, which is 4. Answer: So, point R corresponds to the ordered pair (–2, 4). Point R is located in Quadrant II. Example 1

Write the ordered pair that corresponds to point L Write the ordered pair that corresponds to point L. Then state the quadrant in which the point is located. A. (–4, 1); Quadrant I B. (4, 1); Quadrant I C. (4, 0); Quadrant I D. (4, 1); Quadrant II Example 1 CYP

Graph and label point M at (3, 5). Answer: Graph an Ordered Pair Graph and label point M at (3, 5). Answer: • Start at the origin. The x-coordinate is 3. So, move 3 units to the right. • Next, since the y-coordinate is 5, move 5 units up. Draw a dot and label M. Example 2

Graph and label point H at (–1, 3). A. C. B. D. Example 2 CYP

AQUARIUMS A map can be divided into a coordinate plane where the x-coordinate represents how far to move right or left and the y-coordinate represents how far to move up or down. What exhibit is located at (–5, –1)? Example 3

Start at the origin. Move 5 units to the left and then 1 unit down. Answer: Glover’s Reef is located at (–5, –1). Example 3

AQUARIUMS What exhibit is located at (–4, 2)? A. Sea Cliffs B. Think Tank C. Seaside Pavillion D. Sharks Example 3 CYP

Answer: The Fur Seals exhibit is located in Quadrants I and II. AQUARIUMS In which quadrant or quadrants is the Fur Seals exhibit located? Answer: The Fur Seals exhibit is located in Quadrants I and II. Example 4

AQUARIUMS In which quadrant or quadrants is the Sea Cliffs located? A. Quadrants I and IV B. Quadrants I and II C. Quadrants II and III D. Quadrants III and IV Example 4 CYP